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Effect of survey instrument on participation in a follow-up study: a randomization study of a mailed questionnaire versus a computer-assisted telephone interview

Carissa M Rocheleau*, Paul A Romitti, Stacey Hockett Sherlock, Wayne T Sanderson, Erin M Bell and Charlotte Druschel

BMC Public Health 2012, 12:579  doi:10.1186/1471-2458-12-579

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